connect to mysql using php

I installed the latest versions of apache, php and mysql on windows 10.  I am trying to connect to mysql for the first time within php and the code simply stops, i.e. there is no error message, and it will not proceed to the line below the following statement.

$connection = new mysqli('localhost','root','password', '');

Do I need to start mysql after installing it, if so, how do I do that?

Thanks,
Pete
shafer23Asked:
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shafer23Author Commented:
To follow up, mysql is running when I view the task manager, so that does not seem to be the issue.  note, I ran into this problem a few years ago, and I implemented the below solution (which I have also done this time around, but it is still not connecting).

To allow php to connect with mysql in windows, change the hosts file that is located within the below directory:
Windows\system32\drivers\etc\hosts
uncomment the below line:
127.0.0.1  localhost   (to do so, type note pad within the startpanel search bar, choose run as administrator, and then open the file).

Thanks again for any thoughts
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shafer23Author Commented:
I implemented the development version of the php.ini file and it returned the below message:
Fatal error: Uncaught Error: Class 'mysqli' not found

As such, I implemented the below lines within the php.ini file and it resolved the issue:
extension=mysqli
extension_dir = "c:\php\ext"
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